Windspire Energy (fka Mariah Power)
Windspire Energy designs and manufactures vertical-axis wind turbines (750W to 5kW) and solar streetlighting systems for residential, commercial, and municipal customers in the United States, selling direct via quote-based consultative sales.
- Company typePrivate
- Founded2005
- HeadquartersReno, United States
- Headcount11–50
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Windspire Energy (fka Mariah Power) does
Windspire Energy, formerly known as Mariah Power and now operated as a brand of Royall Products, LLC, designs, manufactures, and sells vertical-axis wind turbine (VAWT) systems for the small-wind market. The company's product line spans 750W to 5kW turbines, with the 1kW, 2kW, 3kW, and 5kW models differentiated by tiered rotor configurations (one to three tiers, three to nine blades) and engineered for ultra-quiet operation, custom colors, and either on-grid or off-grid installation. All units are designed, tested, and fabricated at the company's facility at 325 South Park Street, Reedsburg, Wisconsin, with matched inverters for grid-tie applications and warranties ranging from three to five years depending on model. SunSpire, the company's solar sub-brand, extends the offering into autonomous solar streetlight and lightpole systems for municipalities, parks, and residential or commercial sites.
The company sells directly to customers via phone (800-944-2516, 608-768-8508, 803-347-5566) and email, with pricing quoted on a project basis rather than listed publicly. It offers free wind-feasibility studies and engineering customization for each site, positioning itself as a consultative, project-driven supplier rather than a high-volume distributor. Target customer segments include residential property owners seeking energy independence and reduced electricity costs, commercial and small-business customers pursuing sustainability goals, and public-sector entities needing off-grid lighting solutions.
Windspire Energy is privately held under Royall Products, LLC, with no public listing, no disclosed institutional equity beyond approximately $1.25M raised in 2008 from Big Sky Partners, GHC Partners, Noventi, Keiretsu Forum, and Sierra Angels, and no recent M&A or capital-raise activity in the source data. Operating geographies are concentrated in the United States, and the company's intellectual property centers on the registered "Windspire Energy" trademark and proprietary VAWT rotor architecture rather than on a documented patent estate.
Windspire Energy (fka Mariah Power) firmographics
Firmographics- Name
- Windspire Energy (fka Mariah Power)
- Legal name
- Royall Products, LLC
- Website
- https://windspireenergy.com
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Windspire Energy designs and manufactures vertical-axis wind turbines (750W to 5kW) and solar streetlighting systems for residential, commercial, and municipal customers in the United States, selling direct via quote-based consultative sales.
- Ownership category
- akta.pro rank
Windspire Energy (fka Mariah Power) industry classification
Industry- Product category
- Small Wind Turbines
- NAICS
- Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)
- SIC
- Engines & Turbines (3510)
- akta.pro primary industry
- Wind Turbine OEMs & System Integration (Nacelle/Generator/Controls) (EUAMACAC)
- akta.pro secondary industry
- Wind Blades, Towers & Foundations Manufacturing (EUAMAHAE)
Keywords
Where Windspire Energy (fka Mariah Power) is headquartered
LocationHeadquarters
- HQ city
- Reno
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Windspire Energy (fka Mariah Power) business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Wind Turbine Hardware Sales: One-time sale of vertical axis wind turbine systems ranging from 1kW to 5kW capacity. Products include everything needed for installation. Each unit comes with warranty coverage (3-year warranty for 1kW, 5-year warranty for 2kW models).
- Solar Lighting System Sales: Sale of SunSpire solar street lighting poles and systems for business, parks, and residential areas. Fully autonomous and energy self-sufficient products.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Windspire Energy (fka Mariah Power) product offering
Product offeringCore offering
Windspire Energy designs, manufactures, and sells vertical axis wind turbine (VAWT) systems ranging from 750W to 5kW capacity, along with SunSpire solar street lighting systems. All wind turbines are fully designed, tested, and fabricated in Reedsburg, Wisconsin, USA, and are available in custom colors. The products are sold directly to customers for both on-grid and off-grid renewable power generation applications.
Product overview
Windspire Energy, a subsidiary of Royall Products, LLC based in Reedsburg, Wisconsin, offers a portfolio of vertical axis wind turbines ranging from 750W to 5kW systems, complemented by Sunspire solar lighting solutions. The wind turbine product line includes the 1kW, 2kW, 3kW, and 5kW models, all manufactured domestically in Wisconsin and available in custom colors. The turbines are designed for lightweight, high-powered operation with ultra-quiet performance and can be installed on-grid or off-grid. The Sunspire Solar Lighting product provides solar streetlight systems for commercial, municipal, and residential applications. All products come with warranty coverage (3-5 years for turbines) and are engineered to customer specifications.
Differentiator
Problem solved
Functional benefit
Brands
- SunSpire Solar Lighting: Solar lighting solutions for business, parks, and residential areas. Autonomous and energy self-sufficient lightpole systems.
Products and services
- 1kW Wind Turbine
Quantifiable outcome
- Annual output of 9400 kwh @ average 12.5 mph wind speed (5kW model)
- +3 more outcomes
Companies that use Windspire Energy (fka Mariah Power)
Customer profileSegments3 records
Ideal customer profiles3 records
Windspire Energy (fka Mariah Power) technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Windspire Energy (fka Mariah Power) partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights3 records
Windspire Energy (fka Mariah Power) competitors and assessment
Company assessmentBroad incumbents
- Vestas: Global #1 wind turbine OEM focused on utility-scale onshore and offshore systems. Broad incumbent in the wind industry with overlapping technology and customer relationships; sets the competitive benchmark Windspire's small-wind products must differentiate against.
- GE Renewable Energy: Major wind turbine OEM with broad onshore and offshore portfolios. Broad incumbent competitor in the wind generation category whose scale, service network, and financing options dwarf small-wind specialists like Windspire.
Direct peers
- Northern Power Systems: US-based manufacturer of permanent-magnet direct-drive wind turbines in the small-to-medium scale (roughly 10kW to 100kW+). Directly comparable to Windspire as a North American small-wind OEM serving commercial and distributed-generation customers.
- Bergey Windpower: Oklahoma-based manufacturer of small horizontal-axis wind turbines (1kW to 10kW) for residential, off-grid, and small commercial use. Closest direct competitor to Windspire on capacity range, customer segment, and US-domestic small-wind positioning.
- Xzeres Wind: US small-wind OEM (formerly Cascade Wind) producing 2.5kW to 10kW horizontal-axis turbines for residential and light commercial customers. Overlaps with Windspire on distributed-generation wind hardware in the 1-10kW class.
- Endurance Wind Power: Canadian manufacturer of small wind turbines (5kW to 50kW) for farms, businesses, and community distributed-generation projects. Directly comparable to Windspire in the small-wind distributed-generation category serving rural and small-commercial buyers.
- Primus Wind Power (formerly Southwest Windpower): Manufacturer of small wind turbines (Air series) commonly used for off-grid, telecom, marine, and residential applications. Directly comparable to Windspire in distributed small-wind hardware sales.
Emerging players
- Vergnet: French wind turbine OEM focused on medium and small turbines for island grids, remote sites, and tropical cyclone-rated conditions. Comparable to Windspire as a small-to-medium scale distributed-generation wind hardware specialist.
- Solexy Energy Systems: Emerging player in distributed solar and complementary renewable energy hardware. Adjacent to Windspire's SunSpire solar lighting and broader small-scale renewable distribution business; comparable in targeting small commercial and municipal distributed energy customers.
- Kingspan Wind: Provider of small wind turbines (formerly Gaia-Wind) integrated into the broader Kingspan building products portfolio. Comparable to Windspire as a small-wind OEM serving on-site building and farm generation customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks7 records
Key highlights7 records
Customer concentration
Windspire Energy (fka Mariah Power) social profiles
Digital presenceWindspire Energy (fka Mariah Power) financial estimates
Financial estimateRevenue estimate
Valuation estimate
Windspire Energy (fka Mariah Power) leadership team
Management profileNumber of profiles
Windspire Energy (fka Mariah Power) funding detail
Funding detailFunding overview
Funding rounds3 records
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Windspire Energy (fka Mariah Power) M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Windspire Energy (fka Mariah Power)
What does Windspire Energy (fka Mariah Power) do?
Windspire Energy designs, manufactures, and sells vertical axis wind turbine (VAWT) systems ranging from 750W to 5kW capacity, along with SunSpire solar street lighting systems. All wind turbines are fully designed, tested, and fabricated in Reedsburg, Wisconsin, USA, and are available in custom colors. The products are sold directly to customers for both on-grid and off-grid renewable power generation applications.
Is Windspire Energy (fka Mariah Power) a public or private company?
Windspire Energy (fka Mariah Power) is a private company. It is classified as corporate owned and is currently operating.
When was Windspire Energy (fka Mariah Power) founded?
Windspire Energy (fka Mariah Power) was founded in 2005. It employs 11 to 50 people.
Where is Windspire Energy (fka Mariah Power) based?
Windspire Energy (fka Mariah Power) is headquartered in Reno, United States, in the North America region.
How does Windspire Energy (fka Mariah Power) make money?
Two revenue lines are on record. Wind Turbine Hardware Sales are the primary driver. The others are solar Lighting System Sales.
Who are Windspire Energy (fka Mariah Power)'s main competitors?
Broad incumbents on record are Vestas and GE Renewable Energy. Direct peers are Northern Power Systems, Bergey Windpower, Xzeres Wind, Endurance Wind Power and Primus Wind Power (formerly Southwest Windpower). Emerging players are Vergnet, Solexy Energy Systems and Kingspan Wind.
Does Windspire Energy (fka Mariah Power) have an API?
No public API is recorded for Windspire Energy (fka Mariah Power).
What industry is Windspire Energy (fka Mariah Power) in?
Windspire Energy (fka Mariah Power)'s product category is Small Wind Turbines. Its primary akta.pro industry code is EUAMACAC, Wind Turbine OEMs & System Integration (Nacelle/Generator/Controls), with a secondary code of EUAMAHAE, Wind Blades, Towers & Foundations Manufacturing. Its NAICS code is 3336 and its SIC code is 3510.